I installed the recent update that became available and 4k video does not work anymore. Only 1080p video works. Also when I go in to the setup screen the whole screen is shaded green rather than white like it normally is.
Clearly there are some bugs in the new release.
Feb 26, 2019
Thank you for posting to the community. I'm sorry to hear that you're experiencing this issue with 4K video. This is an issue which were are currently working to resolve permanently. Until then, here are a couple of things you can try in order to fix it.
Try performing an HDMI reset. This will re-initiate the HDMI handshake between the Lifestyle console and the TV, which may alleviate the issue. To do this:
If this does not work, factory reset the console. To do this, power the system down and press and hold the Power button on the console for 5 seconds until the console LED turns off.
If neither of these solutions work, please contact our dedicated Technical Support team by telephone and one of our agents will assist you in restoring 4K video to your system. To find the appropriate phone number, select your country from this list and click "Contact Us" from the menu at the bottom of the page.
Patrick - Community Support